You play with crayons and physics. The goal of the game is to move the red ball so that it collects the stars. You can cause the red ball to move by drawing physical objects.

Changes:

Improved scratch to erase! Now you must scratch the object at least 3 times to erase it!
Some bugfixes
Non-physical objects! (iPhysics_Levelpack_Format – See the shape types)
Triggers on user touch events and collisions, to move joints or delete objects!

http://iphysics.r4m0n.net/index.php?title=Latest_Updates